NSC LM339J, LM239AJ Datasheet

LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators

August 2000

General Description

The LM139 series consists of four independent precision voltage comparators with an offset voltage specification as low as 2 mV max for all four comparators. These were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.

Application areas include limitcomparators,simpleanalogto digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. The LM139 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, they will directly interface with MOS logic— where the low power drain of the LM339 is a distinct advantage over standard comparators.

Features

n Wide supply voltage range n LM139/139A Series 2 to 36 V n LM2901: 2 to 36 V n LM3302: 2 to 28 V n Very low supply current drain (0.8 mA) — independent

of supply voltage

n Low input biasing current: 25 nA n Low input offset current: n Offset voltage: n Input common-mode voltage range includes GND n Differential input voltage range equal to the power

supply voltage

n Low output saturation voltage: 250 mV at 4 mA n Output voltage compatible with TTL, DTL, ECL, MOS

and CMOS logic systems

DC DC

or±1to±18 V

or±1to±18 V or±1to±14 V

5nA

3mV

DC DC DC

Advantages

n High precision comparators n Reduced V n Eliminates need for dual supplies n Allows sensing near GND n Compatible with all forms of logic n Power drain suitable for battery operation

drift over temperature

One-Shot Multivibrator with Input Lock Out

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Absolute Maximum Ratings (Note 10)

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.

LM139/LM239/LM339

LM139A/LM239A/LM339A LM3302

Supply Voltage, V

Differential Input Voltage (Note 8) 36 V Input Voltage −0.3 VDCto +36 V Input Current (V

−0.3 VDC),

(Note 3) 50 mA 50 mA

Power Dissipation (Note 1)

Molded DIP 1050 mW 1050 mW

LM139/LM239/LM339/LM2901/LM3302

Cavity DIP 1190 mW Small Outline Package 760 mW

Output Short-Circuit to GND,

(Note 2) Continuous Continuous Storage Temperature Range −65˚C to +150˚C −65˚C to +150˚C Lead Temperature

(Soldering, 10 seconds) 260˚C 260˚C Operating Temperature Range −40˚C to +85˚C

LM339/LM339A 0˚C to +70˚C

LM239/LM239A −25˚C to +85˚C

LM2901 −40˚C to +85˚C

LM139/LM139A −55˚C to +125˚C Soldering Information

Dual-In-Line Package

Soldering (10 seconds) 260˚C 260˚C

Small Outline Package

Vapor Phase (60 seconds) 215˚C 215˚C Infrared (15 seconds) 220˚C 220˚C

See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices.

ESD rating (1.5 kΩ in series with 100 pF) 600V 600V

LM2901

36 VDCor±18 V

28 VDCor±14 V

28 V

−0.3 VDCto +28 V

Electrical Characteristics

(V+=5 VDC,TA= 25˚C, unless otherwise stated)

Parameter Conditions LM139A LM239A, LM339A LM139 Units

Min Typ Max Min Typ Max Min Typ Max

Input Offset Voltage (Note 9) 1.0 2.0 1.0 2.0 2.0 5.0 mV Input Bias Current I

Input Offset Current I Input Common-Mode V+=30 VDC(LM3302, 0 V+−1.5 0 V+−1.5 0 V+−1.5 V

Voltage Range V+=28 VDC) (Note 6)

Supply Current R

Voltage Gain R

Large Signal VIN=TTL Logic Swing, V

Response Time 1.4 V

Response Time V

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IN(+)

or I

with Output in 25 100 25 250 25 100 nA

IN(−)

Linear Range, (Note 5), VCM=0V

IN(+)−IIN(−),VCM

=∞on all Comparators, 0.8 2.0 0.8 2.0 0.8 2.0 mA

=0V 3.0 25 5.0 50 3.0 25 nA

RL=∞,V+=36V, 1.0 2.5 1.0 2.5 mA (LM3302, V+=28 VDC)

≥15 kΩ,V+=15 V

=1VDCto 11 V

DC,VRL

=5.1 kΩ

=5 VDC,RL=5.1 kΩ, 1.3 1.3 1.3 µs

=5 VDC,

= 300 300 300 ns

REF

50 200 50 200 50 200 V/mV

(Note 7)

DC DC

Electrical Characteristics (Continued)

(V+=5 VDC,TA= 25˚C, unless otherwise stated)

Parameter Conditions LM139A LM239A, LM339A LM139 Units

Min Typ Max Min Typ Max Min Typ Max

Output Sink Current V

VO≤1.5 V

Saturation Voltage V

SINK

Output Leakage V

Current VO=5 V

=1 VDC,V

IN(−)

=1 VDC,V

IN(−)

≤4mA

=1 VDC,V

IN(+)

=0, 6.0 16 6.0 16 6.0 16 mA

IN(+)

=0, 250 400 250 400 250 400 mV

IN(+)

=0, 0.1 0.1 0.1 nA

IN(−)

Electrical Characteristics

(V+=5 VDC,TA= 25˚C, unless otherwise stated)

Parameter Conditions LM239, LM339 LM2901 LM3302 Units

Min Typ Max Min Typ Max Min Typ Max

Input Offset Voltage (Note 9) 2.0 5.0 2.0 7.0 3 20 mV Input Bias Current I

Input Offset Current I Input Common-Mode V+=30 VDC(LM3302, 0 V+−1.5 0 V+−1.5 0 V+−1.5 V

Voltage Range V+=28 VDC) (Note 6)

Supply Current R

Voltage Gain R

Large Signal VIN=TTL Logic Swing, V

Response Time 1.4 V

Response Time V

Output Sink Current V

Saturation Voltage V

Output Leakage V

Current VO=5 V

IN(+)

or I

with Output in 25 250 25 250 25 500 nA

IN(−)

Linear Range, (Note 5), VCM=0V

IN(+)−IIN(−),VCM

=∞on all Comparators, 0.8 2.0 0.8 2.0 0.8 2.0 mA

=0V 5.0 50 5 50 3 100 nA

RL=∞,V+=36V, 1.0 2.5 1.0 2.5 1.0 2.5 mA (LM3302, V+=28 VDC)

≥15 kΩ,V+=15 V

=1VDCto 11 V

DC,VRL

=5.1 kΩ,

=5 VDC,RL=5.1 kΩ, 1.3 1.3 1.3 µs

=5 VDC,

= 300 300 300 ns

REF

50 200 25 100 2 30 V/mV

(Note 7)

=1 VDC,V

IN(−)

VO≤1.5 V

=1 VDC,V

IN(−)

≤4mA

SINK

=1 VDC,V

IN(+)

=0, 6.0 16 6.0 16 6.0 16 mA

IN(+)

=0, 250 400 250 400 250 500 mV

IN(+)

=0, 0.1 0.1 0.1 nA

IN(−)

LM139/LM239/LM339/LM2901/LM3302

DC DC

Electrical Characteristics

(V+= 5.0 VDC, (Note 4))

Parameter Conditions

LM139A LM239A,

LM339A

Min Typ Max Min Typ Max Min Typ Max

Input Offset Voltage (Note 9) 4.0 4.0 9.0 mV Input Offset Current I Input Bias Current I

IN(+)−IIN(−),VCM

or I

IN(+)

=0V 100 150 100 nA

with Output in 300 400 300 nA

IN(−)

Linear Range, VCM=0V (Note 5)

Input Common-Mode V

=30 VDC(LM3302, 0 V+−2.0 0 V+−2.0 0 V+−2.0 V Voltage Range V+=28 VDC) (Note 6) Saturation Voltage V

IN(−)

SINK

=1 VDC,V

≤4mA

=0, 700 700 700 mV

IN(+)

LM139

Units

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DC DC DC

Electrical Characteristics (Continued)

(V+= 5.0 VDC, (Note 4))

Parameter Conditions

LM139A LM239A,

LM339A

LM139

Min Typ Max Min Typ Max Min Typ Max

Output Leakage Current V

IN(+)=1VDC,VIN(−)

=0, 1.0 1.0 1.0 µA VO=30 VDC, (LM3302, V

=28 VDC)

Differential Input Voltage Keep all V

’s≥0VDC(or V−,363636V

if used), (Note 8)

Electrical Characteristics

LM139/LM239/LM339/LM2901/LM3302

(V+= 5.0 VDC, (Note 4))

Parameter Conditions LM239, LM339 LM2901 LM3302 Units

Min Typ Max Min Typ Max Min Typ Max

Input Offset Voltage (Note 9) 9.0 9 15 40 mV Input Offset Current I Input Bias Current I

IN(+)−IIN(−),VCM

or I

IN(+)

Linear Range, VCM=0V (Note

Input Common-Mode V

=30 VDC(LM3302, V+=28

)

Voltage Range (Note 6) Saturation Voltage V

Output Leakage Current V

=1 VDC,V

IN(−)

≤4mA

SINK

IN(+)=1VDC,VIN(−)

VO=30 VDC, (LM3302, VO=28

)

Differential Input Voltage Keep all V

if used), (Note 8)

Note 1: For operating at high temperatures, the LM339/LM339A, LM2901, LM3302 must be derated based on a 125˚C maximum junction temperature and a thermal resistanceof 95˚C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The LM239 and LM139 must be derated based on a 150˚C maximum junction temperature. The low bias dissipation and the “ON-OFF” characteristic of the outputs keeps the chip dissipation very small

≤100 mW), provided the output transistors are allowed to saturate.

Note 2: Short circuits from the output to V current is approximately 20 mA independent of the magnitude of V

Note 3: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than −0.3 V

Note 4: These specifications are limited to −55˚C≤T

≤+85˚C, the LM339/LM339A temperature specifications are limited to 0˚C≤TA≤+70˚C, and the LM2901, LM3302 temperature range is −40˚C≤TA≤+85˚C.

−25˚C≤T

Note 5: The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the outputso no loading change exists on the reference or input lines.

Note 6: The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V.Theupperend of the common-mode voltage range is V

Note 7: The response time specified is a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be obtained, see typical performance characteristics section.

Note 8: Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than −0.3 V supply, if used) (at 25˚C).

Note 9: At output switch point, V For LM3302, V

Note 10: Refer to RETS139AX for LM139A military specifications and to RETS139X for LM139 military specifications.

−1.5V at 25˚C, but either or both inputs can go to +30 VDCwithout damage (25V for LM3302), independent of the magnitude of V+.

from 5 VDCto 28 VDC.

(at 25˚)C.

.1.4 VDC,RS=0Ωwith V+from 5 VDCto 30 VDC; and over the full input common-mode range (0 VDCto V+−1.5 VDC), at 25˚C.

=0V 150 50 200 300 nA

with Output in 400 200 500 1000 nA

IN(−)

−2.0 0 V+−2.0 0 V+−2.0 V

=0, 700 400 700 700 mV

IN(+)

=0, 1.0 1.0 1.0 µA

’s≥0VDC(or V−,363628V

can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output

≤+125˚C, for the LM139/LM139A. With the LM239/LM239A, all temperature specifications are limited to

voltage level (or to ground for a large overdrive) for the time

(or 0.3 VDCbelow the magnitude of the negative power

Units

DC DC DC

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Typical Performance Characteristics LM139/LM239/LM339, LM139A/LM239A/LM339A, LM3302

LM139/LM239/LM339/LM2901/LM3302

Supply Current

Response Time for Various Input Overdrives—Negative Transition

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Input Current

Output Saturation Voltage

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Response Time for Various Input Overdrives—Positive Transition

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Typical Performance Characteristics LM2901

Supply Current

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Input Current

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Output Saturation Voltage

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Typical Performance Characteristics LM2901 (Continued)

Response Time for Various Input Overdrives—Negative Transition

LM139/LM239/LM339/LM2901/LM3302

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Application Hints

The LM139 series are high gain, wide bandwidth devices which, like most comparators, can easily oscillate if the output lead is inadvertently allowed to capacitively couple to the inputs via stray capacitance. This shows up only during the output voltage transition intervals as the comparator changes states. Power supply bypassing is not required to solve this problem. Standard PC board layout is helpful as it reduces stray input-output coupling. Reducing this input resistors to finally, adding even a small amount (1 to 10 mV) of positive feedback (hysteresis) causes such a rapid transition that oscillations due to stray feedback are not possible. Simply socketing the IC and attaching resistors to the pins will cause input-output oscillations during the small transition intervals unless hysteresis is used. If the input signal is a pulse waveform, with relatively fast rise and fall times, hysteresis is not required.

All pins of any unused comparators should be tied to the negative supply.

The bias network of the LM139 series establishes a drain current which is independent of the magnitude of the power supply voltage over the range of from 2 V

It is usually unnecessary to use a bypass capacitor across the power supply line.

Typical Applications (V

10 kΩ reduces the feedback signal levels and

to 30 VDC.

= 5.0 VDC)

Response Time for Various Input Overdrives-Positive Transition

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The differential input voltage may be larger than V damaging the device. Protection should be provided to prevent the input voltages from going negative more than

−0.3 V

(at 25˚C). An input clamp diode can be used as

shown in the applications section. The output of the LM139 series is the uncommitted collector

of a grounded-emitter NPN output transistor. Many collectors can be tied together to provide an output OR’ing function. An output pull-up resistor can be connected to any available power supply voltage within the permitted supply voltage range and there is no restriction on this voltage due to the magnitude of the voltage which is applied to the V of the LM139A package. The output can also be used as a simple SPST switch to ground (when a pull-up resistor is not used). The amount of current which the output device can sink is limited by the drive available (which is independent of

) and the β of this device. When the maximum current limit is reached (approximately 16 mA), the output transistor will come out of saturation and the output voltage will rise very rapidly. The output saturation voltage is limited by the approximately 60Ω R

of the output transistor. The low

SAT

offset voltage of the output transistor (1 mV) allows the output to clamp essentially to ground level for small load currents.

without

terminal

Basic Comparator

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Driving CMOS

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Driving TTL

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